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（廣東省建筑設(shè)計(jì)研究院，  廣州 510010）

［摘要］對(duì)7度區(qū)12棟超限高層框筒結(jié)構(gòu)中震下主要墻肢拉應(yīng)力比進(jìn)行統(tǒng)計(jì)，名義最大拉應(yīng)力比在1-0～2-5之間，在結(jié)構(gòu)設(shè)計(jì)可控范圍內(nèi)。在高層結(jié)構(gòu)中震計(jì)算中應(yīng)采用未經(jīng)放大的樓層地震標(biāo)準(zhǔn)組合內(nèi)力判斷剪力墻的受拉程度。對(duì)核心筒偏置的超限結(jié)構(gòu)進(jìn)行抗震性能分析，發(fā)現(xiàn)拉應(yīng)力較大的墻肢在大震作用下出現(xiàn)拉剪或拉彎破壞；根據(jù)墻肢拉力配置型鋼后，改善了結(jié)構(gòu)底部剪力墻的抗震性能，墻肢未出現(xiàn)剪切破壞和拉彎破壞。進(jìn)一步的精細(xì)有限元分析表明，加型鋼后受拉墻肢的抗拉和抗剪能力明顯提高。當(dāng)中震作用下超高層結(jié)構(gòu)的底部墻肢名義拉應(yīng)力比超過(guò)2-0時(shí)，可通過(guò)加型鋼或鋼板來(lái)滿足抗震性能要求，而且型鋼或鋼板截面面積應(yīng)適當(dāng)增大。

［關(guān)鍵詞］超限高層建筑； 框筒結(jié)構(gòu)； 受拉墻體； 抗震性能

中圖分類號(hào)：TU352文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2017)01-0033-04

Seismic performance analysis of tensile wall in frame-corewall structure of 

out-of-code high-rise building in 7-level seismic intensity area

Jiao Ke, Chen Xing, Wu Guiguang, Jia Su, Ou Mintao

(Architectural Design and Research Institute of Guangdong Province, Guangzhou 510010, China)

Abstract:Tensile stress ratios of the main walls in frame\|corewall structure of 12 out-of-code high-rise buildings in 7-level seismic intensity area under the fortification earthquake were counted, and the maximum nominal tensile stress ratio was between 1-0 ～ 2-5 and was in the controllable range of the structure design. In seismic calculation of the high-rise structure under the fortification earthquake, non-amplified floor seismic standardized combined internal forces should be adopted to judge the tension degree of shear walls. The seismic performance analysis was conducted on the out-of-code structure with eccentrically set corewall, and  the tensile-shear or tensile-bending failures are observed in walls with lager tensile stress under the rare earthquakes. After steel section is arranged in wall according to wall tensile result, the seismic performance of shear wall at the bottom of the structure  improves and there is no shear failure or tensile-bending failure. Further detailed finite element analysis shows that tensile and shear capacity of the wall adding steel section   improve significantly. When nominal tensile stress ratio of the bottom shear wall in super high-rise structure is more than 2-0 under the rare earthquake, the requirements of seismic performance can be met by adding steel section or steel plate, and section area of steel section or steel plate should be appropriately increased.

Keywords:out-of-code high-rise building; frame-corewall structure; tensile wall; seismic performance

作者簡(jiǎn)介：焦柯，碩士，教授級(jí)高級(jí)工程師，Email：gscad@qq.com。